[luatex] Segmentation fault in 1.09.2

Henri Menke henrimenke at gmail.com
Wed Jan 16 10:14:54 CET 2019

Dear list,

To answer a question on TeX.SX I wanted to compare glyph sidebearings
using kerns.  However, when trying to insert a kern before the head of
the last line I first get an error followed by segmentation fault:

warning  (node filter): error: [\directlua]:12: Attempt to
node.insert_before() a non-existing node

Segmentation fault

The example is attached because it's a bit larger.  I marked the
offending line with “BOOM”.

Cheers, Henri
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